US1857804A - Safety gas burner - Google Patents

Description

y 1932- HA CARLSEN 1,857,804

SAFETY GAS BURNER Filed March 24, 1930 E z 1 j}- '7 gnvewtoz: HALFDAN CARLsEN IO// I i I 7 4 burner and safety burner Patented May 10, 1932 ,UNITED- STATES.

HALFDAN OARLSEN, OF NEW YORK, N. Y.

SAFETY GAS BURNER Application filed March 24, 1930. ,Serial No. 438,541.

This invention relates to gas stoves and in particular to an auxlliary et arranged to be disposed adjacent the main burner so that should the main burnerbecomeextin- 6 guished accidentally, the auxiliary jet will relight the same. 7 The cause of many deaths by accidental asphyxiation is the boiling over of a vessel so that the contents of the vessel extinguishes the'gas flame and subsequently permits the gas to escape with detrimental results. In order to overcome this danger, I have provided adjacent the burner, another safety burner in which use ismade ofthe full pressure of the gas line to project a jet of flame from the safety burner across the main burner so that should the flames of the main burner be extinguished accidentally, the gas will be reignited and its escape prevented.

In order that the safety light may be manufactured at small cost, and in order that it may operate efficiently and be substantially fool-proof and at the same time prevent the waste of gas, I have provided a hood which is arranged to be cast integral with the safety light and also a Valve so that the amount of gas flowing through the safety light'may be controlled.

With the foregoing and other objects in l view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings 1-- Figure 1 is a plan view of a gas burner and feed pipe in the latter of which is incorporated my improved safety burner.

Figure 2 is a View in side elevation of the as illustrated in Figure 1. i

Figure 3 is an enlarged view in sectional elevation showing the construction of my improved safety burner, and

Figure 4 is a section taken through the feed pipe showing the connection therewith of the safety burner.

Referring to the drawings in detail, 5

indicates a gas burner of any approved type h to which illuminating gas is fed through the medium of the feed pipe 6. The burner 5 is arranged to be positioned beneath a pot supporting grating or grille so that the flame from the burner may impinge upon the bottom ofthe vessel. In order that the es-' caping gas from the burner may be at all times kept ignited, I have provided aisafety light or'jet consisting of an auxiliary pipe 7 which is closed at itsuppe'r .end as at 8; and at its lower. end is provided with the cut-out portion 9 and in'the wall thereof, a gas passage 10, the: object of the opening 10 being to facilitate the passage of the gas through the feed pipe 6 so that the opera-, tion of the burner will not be materially 'in-' terfered with. The upper endlof the auxiliary pipe 7 is cast to provide a' thickened portion 11 in connection. with wh ichis i11- tegrally formed, a substantially semi-circu emerging therefrom,as indicated by thefn'umeral lt-A in Figure 2,,is protected at the point where it emerges from the jet tube and will not be extinguished by a gust of wind or the boiling over of the contents of a vessel disposed above the main burner 5.

It W111 be noted that the hood 12 bang-or a substantially semi-circularshape, is greatest in width at the lower edge thereof so that in burner constructions in which the pipe 6 is substantially flush with the burner and where little space provided between the burner and the pot holding grating 'or grille, the,

safetly light can be placed very closeto the pipe 6 by providing a short auxiliary pipe 7 it being evident that the outer edges of the hood 12 will fit down over the pipe 6 so that the auxiliary burner can fit between the pipe and the grille. V

In order that theamount'of gas passing through the jettube 13 maybe regulated, I have provided a threaded needle valve 14 .7 into the feed pipe 6 so that the height of Y which is adjustably positioned in the auxiliary pipe 7 in diametrical alignment with the jet tube 13 so that the pointed end 15 thereof may engage the end of the jet tube 13 to regulate the flow of gas therethrough and consequently, the length of the flame 14A exuding from the et tube 18.

A suitable finger disk 16 is employed on the end of the needle valve 14 for the purpose of revolving the same so that its adjustable movement is afl'orded through the medium of its threaded connection with the auxiliary pipe 7. The threads 17 formed on the lower end of the auxiliary pipe 7 permit an adjustable threading in of the pipe "the hood 12 may be regulated relatively to unitary structure, not only saves the expense .of manufacturing but eliminates any necessity of adjusting the hood relatively to the auxiliary pipe. .The slight space 18 left be tween the rear edge of the hood and the auxiliary pipe 7 provides for the admission of air for the promotion of combustion.

It will be evident that the jet tube 13 being of relatively smaller diameter than the auxiliary pipe 7, will provide for the emission of a thin jet of gas that will provide the long tongue of flame 14A due to the pres- N sure in the feed pipe 6 and auxiliary pipe 7. .40

The apron portion 19 of the lower end of the auxiliary pipe 7, as provided by the cutout 9, acts to divert the gas so that it passes up the auxiliary pipe so that a constant stream of gas through the jet tube is provided.

It is evident, therefore, that I have provided an improved auxiliary burner in the nature of a safety light which will maintain the gas emitting from a burner ignited, after the same has been accidentally extinguished, to prevent the escape of the gas and protect human life.

It is evident, also, that by providing a restricted jet tube in connection with a burner of the type described, that attention to the lighting of the safety light is unnecessary because the pressure of the gas emitting fromvthe jet tube 13 is such that the safety light is ignited at the same time that the burner is lit but thereafter, the boiling over of a pot or other vessel will not be sufficient to ignite the safety light and the burner flame will be maintained even after repeated extinguishing by liquid or wind pressure.

While I have illustrated and described my from said auxiliary pipe to provide an air passage.

2. The combination with a'burner and gas feed pipe therefor, of a safety light comprising an auxiliary pipe threaded into said feed pipe, a'jet in the auxiliary pipe, an adjusting screw for regulating the flow of gas. 35

through said et, a semi-circular hood formed integral with said auxiliary pipe and depending to protect the jet, and the vertical edges of the hood adjacent the auxiliary pipe being spaced therefrom to provide an air passage.

3. The combination with a burner and a gas feed pipe therefor, of a safetylight comprising an auxiliary pipe threaded into said feed pipe, a jet in the auxiliary pipe, an adjusting screw for regulating the flow of gas through said jet, a substantially semi-circular hood formed integral with said auxiliary pipe and protecting said jet, and having its vertical edges adjacent the auxiliary piper spaced therefrom to provide an air passage, and said auxiliary pipe having an opening at one side thereof in that portion disposed within said feed pipe. n

In testimony whereof, I have signed myr name to' this specification this 13th day of March, 1980.

HALFDAN CARLSEN. ['L. s.]

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